CN205955801U - Purifying treatment device for black smoke and waste gas discharged by vehicle - Google Patents

Abstract

The utility model discloses a vehicle emission black smoke and waste gas purification treatment device. A plurality of shunt pipes, a combustion unit and a filter unit are sequentially arranged in the direction from the air inlet end to the air outlet end of the vehicle. The combustion unit is provided with a diamond-shaped cover body for making the waste gas stay for a long time. The waste gas is first dispersed through the shunt pipes and then enters the diamond-shaped cover body to concentrate the waste gas. A proper amount of air and atomized fuel are sprayed into the diamond-shaped cover body for mixing. Then, the ignition device is immediately cooperated to ignite and the waste gas is completely burned. The waste gas flow after combustion is discharged through the through hole and the small diameter end arranged on the side wall of the diamond-shaped cover body. The waste gas passing through the diamond-shaped cover body is guided by an air flow guide element and then concentrated through the filter unit for filtering and then discharged. A flameproof unit is arranged at the exhaust end of the filter unit to block the sprayed flame, so that the flame can be traced back to perform secondary combustion on the waste gas and remove the carbon deposits accumulated in the filter unit, so as to maintain the smooth exhaust gas emission of the diesel engine.

Description

Vehicle exhaust black smoke and exhaust gas purification treatment device

technical field

The utility model relates to a vehicle exhaust black smoke and waste gas purification treatment device.

Background technique

Diesel engine vehicles ignite diesel or alternative fuels in the way of compression ignition, and then convert the chemical energy of the fuel into heat energy and power output through the combustion reaction in the cylinder, so various gases and liquids are also produced during the combustion process. , solid pollutants, the most important ones are particulate matter (PM), black smoke (smoke), nitrogen oxides (NOx) and so on. In addition, it also emits gaseous pollutants such as carbon monoxide (CO), sulfur oxides (SOx), carbon dioxide (CO2), and hydrocarbons (HC), causing damage to the global ecological environment such as ozone layer damage, acid rain, and enhanced greenhouse effect. , also cause harm to human health, so it is concerned by the public. For example, nitric acid formed by nitrogen oxides will produce acid rain, which will also destroy the ozone layer and react with sunlight to produce photochemical smog; if particulate pollutants or black smoke contain polycyclic aromatic hydrocarbons (PAHs, polycyclic aromatic hydrocarbons) or metal compounds, it may cause Diseases of the lungs, trachea, and respiratory tract. According to the estimated data of TED 4.2 version of the National Air Pollution Source Emission Database, diesel vehicle emissions, which account for 3% of the number of motor vehicles in the country, come from 46% of PM and 51% of NOx from all mobile pollution sources. In particular, almost all passenger and freight operators in the country use diesel Vehicles are means of transportation, so how to reduce diesel vehicle exhaust pollution through control technologies or control strategies to improve air quality is an important issue today.

China Taiwan No. 103205046 provides a "smoke exhaust purification treatment device" used to improve the aforementioned problems. Its structure is provided with a combustion unit and a filter unit in sequence from the air intake end to the air outlet end of the vehicle, and the The combustion unit is equipped with a diamond-shaped cover that can disperse the incoming exhaust gas and guide the gas to form a cyclone; when the exhaust gas passes through the combustion unit, the exhaust gas is forced to form a cyclone through the diamond-shaped cover, and an appropriate amount of air and atomized fuel are injected into the combustion unit. The diamond-shaped cover is mixed in the body, and then heated and ignited immediately with the electric heating rod to completely burn the exhaust gas that forms the cyclone disturbance, and the exhaust gas after combustion is filtered through the filter unit before being discharged; the exhaust end of the filter unit can be set A flame-proof unit is used to block the ejected flame, and at the same time enable the flame to trace back to perform secondary combustion on the exhaust gas to remove the carbon deposits accumulated in the filter unit, so as to maintain the smooth emission of exhaust gas from the diesel engine.

The No. 104215542 application in Taiwan, China proposed by the designer of the present utility model is to solve the conventional diesel engine vehicle with a filter unit installed in the exhaust pipe, which burns the filter unit filter core by increasing the engine operating temperature. The surface area carbon device will not be able to increase the engine speed due to differences in the driving environment and conditions of the vehicle, as well as the driver's habits, so that the engine operating temperature cannot be increased, resulting in the carbon deposits on the surface of the filter element being unable to be burned smoothly, and carbon deposits will still occur , A problem that affects the smooth exhaust and the performance of the diesel engine.

The feature of the aforementioned Taiwan, China Application No. 104215542 is that a combustion unit and a filter unit are sequentially provided in the direction from the air intake end to the air outlet end of the vehicle, and the combustion unit is provided with a conical cover that allows the exhaust gas to stay for a long time; When the exhaust gas passes through the combustion unit, the exhaust gas is concentrated through the conical cover and cooperates with the baffle plate to make the exhaust gas stay for a long time. Ignite to completely burn the exhaust gas, and the combusted exhaust gas flow is filtered through the filter unit before being discharged; the exhaust end of the filter unit can be equipped with a flameproof unit to block the ejected flame, and at the same time, the flame can be traced back to The exhaust gas undergoes secondary combustion to remove the carbon deposits accumulated in the filter unit to maintain the smooth emission of exhaust gas from the diesel engine.

Utility model content

The main purpose of this utility model is to provide a vehicle that can more effectively purify the exhaust gas discharged from the exhaust pipe of the vehicle diesel engine and remove the carbon deposits in the filter unit, so as to maintain the smooth emission of diesel engine exhaust gas and purify the vehicle exhaust. Processing device.

Based on this, the utility model mainly realizes the above-mentioned object through the following technical means.

A vehicle exhaust black smoke and exhaust gas purification treatment device, in the direction from the air inlet end to the air outlet end of the vehicle, there are arranged in sequence: a plurality of shunt pipes connected to the air inlet end of the exhaust pipe; a combustion unit connected to these shunt pipes The combustion unit has an inner cavity, and a diamond-shaped cover is arranged in the inner cavity. The opposite ends of the diamond-shaped cover in the axial direction are a large-diameter end and a small-diameter end that communicate with each other. The large-diameter end is connected to the A cylindrical cover faces the air inlet end, and the small diameter end faces the air outlet end. The wall of the diamond-shaped cover body is provided with a plurality of through holes passing through the inner and outer sides. The cylindrical cover is provided with a fuel atomizing nozzle and An ignition device, the inner cavity outside the small-diameter end of the diamond-shaped cover body is provided with an airflow guide element corresponding to its axial direction, and there is a space between the airflow guide element and the small-diameter end; and a filter unit, one end of which is Connected to the combustion unit and axially corresponding to the airflow guiding element, the filter unit has at least one filter core.

Further, the through hole is provided on the inclined wall of the diamond-shaped cover facing the airflow guiding element.

Further, these through holes are circular holes and are equiangularly distributed along the circumference of the diamond-shaped cover.

Further, the airflow guiding element has a plurality of vanes arranged and distributed along its circumference, and these vanes are inclined at an angle.

Further, an emergency bypass valve is connected to the side wall of the intake end.

The vehicle exhaust black smoke and exhaust gas purification treatment device of the utility model adopts the design of a plurality of shunt pipes, a diamond-shaped cover body in the combustion unit, and a filter unit, and a plurality of shunt pipes are sequentially arranged in the direction from the air inlet end to the air outlet end of the vehicle. 1. A combustion unit and a filter unit. In order to interfere with the exhaust gas entering the diamond-shaped cover and stay in the diamond-shaped cover for a long time, the utility model is provided with a diamond-shaped cover, and the diamond-shaped cover is directed toward the air flow The inclined wall of the guide element is provided with a plurality of through holes, and the small diameter end faces the airflow guide element, while the large diameter end faces the intake end; the exhaust gas is first dispersed through the shunt tubes and then enters the diamond-shaped housing to concentrate the exhaust gas, and at the same time Spray an appropriate amount of air and atomized fuel into the diamond-shaped cover to mix, and then immediately ignite the exhaust gas with the ignition device to completely burn the exhaust gas. The diamond-shaped cover is discharged from the end of the diamond-shaped cover, and the exhaust gas passing through the diamond-shaped cover is guided by an airflow guide element and then concentrated through the filter unit for filtration and then discharged; the exhaust end of the filter unit can be provided with a flame-proof unit to block The ejected flame also allows the flame to trace back to the exhaust gas for secondary combustion to remove the carbon deposits accumulated in the filter unit, so that the exhaust gas discharged from the exhaust pipe of the vehicle diesel engine can be more effectively purified to maintain diesel engine emissions Smooth exhaust. When the inside of the exhaust pipe or the filter element is blocked, the emergency bypass valve can be opened to discharge the exhaust gas.

The utility model vehicle discharges black smoke and exhaust gas purification treatment device, which solves the problem that conventional diesel engine vehicles with a filter unit installed in the exhaust pipe burn the carbon on the surface of the filter core of the filter unit by raising the engine operating temperature, which will be caused by The driving environment and conditions of the vehicle, as well as the differences in the driver's habits, cannot increase the engine speed, so that the engine operating temperature cannot be increased, so that the carbon deposits on the surface of the filter element cannot be burned smoothly, and carbon deposits will still occur, affecting the smooth exhaust and diesel oil. Engine performance issues.

Description of drawings

Fig. 1 is a schematic diagram showing a front view plane sectional view of the vehicle exhaust black smoke and waste gas purification treatment device of the present invention;

Fig. 2 is a side sectional view along the A-A direction of Fig. 1;

Fig. 3 is a side sectional view along the B-B direction of Fig. 1 .

【Symbol Description】

1 Exhaust pipe 11 Intake port

12 Manifold 2 Combustion unit

20 Lumens 3 Diamond Covers

3A Large diameter end 3B Small diameter end

31 Through hole 30 Cylinder cover

32 Air guide element 321 Vane

4 Filter unit 41 Filter element

5 Gas outlet 50 Flameproof unit

51 mesh 52 baffle

6 fuel injector group 61 fuel atomizing nozzle

62 Ignition 7 Emergency bypass valve.

detailed description

The implementation of the present utility model will be described in more detail below in conjunction with the drawings and component symbols, so that those skilled in the art can implement it after studying this specification.

As shown in Figures 1 to 3, the preferred embodiment of the vehicle exhaust black smoke and exhaust gas purification treatment device provided by the present invention includes a plurality of shunt pipes 12, a combustion unit 2 and a filter unit 4 arranged in sequence ; Wherein, there are at least two shunt pipes 12 and are commonly communicated to an intake port 11 that is used to be connected to the diesel engine exhaust pipe 1, and the sidewall of the intake port 11 is then connected to an emergency bypass valve 7; in other words, from In the direction from the inlet end 11 to the outlet end 5 of the exhaust pipe 1, a plurality of branch pipes 12, a combustion unit 2 and a filter unit 4 are arranged in sequence.

The combustion unit 2 of the present utility model has an inner cavity 20, and a diamond-shaped cover body 3 is arranged in the inner cavity 20. The diamond-shaped cover body 3 has a small-diameter end 3B and a relatively large-diameter end 3A, wherein the large-diameter The end 3A is connected with a cylindrical cover 30 and is axially towards the intake end 11, and an appropriate space is reserved between the outer diameter of the cylindrical cover 30 and the inner diameter of the large-diameter end 3A, and the maximum outer diameter of the diamond-shaped cover body 3 Then it is sealed to the inner diameter of the inner cavity 20, and the sealing method can be completed by welding. A plurality of through holes 31 are distributed on the peripheral sidewall of the diamond-shaped cover body 3; The holes are equiangularly distributed along the circumference of the diamond-shaped cover body 3 .

A fuel injector group 6 is arranged inside the cylindrical cover 30, and the fuel nozzle group 6 includes a fuel atomizing nozzle 61 and an ignition device 62, the ignition device 62 can be a kind of electric heating rod, and is electrically connected to a control The device is used to control its ignition time; the fuel atomizing nozzle 61 is connected to a pump fuel tank (not shown in the figure) with a pipeline, and a fuel control valve is set in the pipeline, and the fuel control valve is used to control the fuel atomization through the fuel The atomized discharge amount sprayed into the cylindrical cover 30 by the nozzle 61 .

The airflow guiding element 32 is arranged in the inner cavity 20 of the combustion unit 2 and behind the small diameter end of the diamond-shaped cover 3. The airflow guiding element 32 is a disk-shaped body on which a plurality of The blades 321 are arranged in a circumferential arrangement, and these blades 321 are inclined at an angle (as shown in FIG. 3 ).

One end of the filter unit 4 is connected to the rear of the combustion unit 2 and located behind the airflow guiding element 32 , and the filter unit 4 has at least one filter element 41 .

In a preferred embodiment of the present utility model, a flameproof unit 50 is further arranged at the exhaust end of the filter unit 4; the flameproof unit 50 includes a mesh 51, and a baffle 52 is arranged in the center of the mesh 51; An air outlet 5 is connected behind the baffle plate 52 .

The vehicle exhaust black smoke and exhaust gas purification treatment device of the utility model, in the normal working state, the combustion unit 2 does not operate, and the exhaust gas emitted by the diesel engine is dispersed by the intake port 11 through each shunt pipe 12 and then flows out from the diamond-shaped cover. The large-diameter end 3A of 3 enters the diamond-shaped cover body 3 and concentrates, and then discharges the diamond-shaped cover body 3 through each through hole 31 and the small-diameter end 3B; Small diameter limitation and interference prolong the time of the exhaust gas in the diamond-shaped housing 3; the exhaust gas discharged from the diamond-shaped housing 3 is then guided by the blades 321 of the airflow guide element 32 to concentrate the airflow, and then the concentrated airflow is passed through the filter. After the filter element 41 of the unit 4 is filtered, it is discharged through the mesh sheet 51 and the gas outlet 5 .

After being used for a period of time, the filter element 41 will be blocked by carbon deposits and the exhaust will not be smooth. At this time, the operation can control the system to order the booster pump (not shown) in the pump fuel tank to move the fuel through the pipeline. to the fuel control valve, and then control the start time of the fuel control valve to output the fuel to the fuel atomizing nozzle 61 to spray out the oil gas atomized into fine molecules; at the same time, the compressed air source delivers high-pressure air to the air valve, which is Control the amount of output air to mix the aforementioned atomized oil and gas, and then control the ignition device 62 to energize and heat the atomized oil and gas to ignite the atomized oil and gas to completely burn the waste gas that forms a turbulent flow in the diamond-shaped cover 3. After burning, The exhaust gas flow is discharged through each through-hole 31 and the small-diameter end 3B of the diamond-shaped cover 3, because the exhaust gas is restricted and interfered by the internal shape of the diamond-shaped cover 3 and the small-diameter end 3B when the exhaust gas is in the diamond-shaped cover 3, the residence time is prolonged. The time in the diamond-shaped cover 3 allows the exhaust gas to be burned more fully; the exhaust gas that has been burned and passed through the diamond-shaped cover 3 is then guided by the blades 321 of the airflow guide element 32 to concentrate the airflow, and then the exhaust gas is used The concentrated exhaust gas flow passes through the filter core 41, and the carbon deposit attached to the filter core 41 is burned and removed by high-temperature exhaust gas; when the carbon deposit is removed to a certain extent, the filter core 41 returns to a smooth and unblocked state, and can be discharged smoothly exhaust gas.

Even, the emergency bypass valve 7 can be opened to allow the exhaust gas to be discharged when the filter element 41 is blocked due to the failure to completely remove the carbon deposit inside the exhaust pipe.

Furthermore, the utility model can also avoid the high-temperature exhaust gas passing through the filter element 41 from ejecting the flame out of the gas outlet 5 by means of the aforementioned flameproof unit; when the flame is ejected from the filter element 41, the flame will be blocked by the baffle plate 52, thereby The flame is traced back to the filter element 41 to perform secondary combustion on the waste gas and carbon deposits, and the fully burned waste gas is discharged through the mesh 51 and the gas outlet 5 .

The above description is only used to explain the preferred embodiments of the present utility model, and is not intended to limit the utility model in any form. Therefore, any modifications or changes made in the same spirit of the utility model, All should still be included in the category that the utility model intends to protect.

Claims (5)

1. a kind of vehicle discharge black smoke and exhaust gas purification and treatment device it is characterised in that the inlet end of the blast pipe of this vehicle extremely The direction of outlet side is sequentially provided with：

Multiple isocons, connect the inlet end of this blast pipe；

One fuel element, connects these isocons, and this fuel element has an inner chamber, arranges a diamond cover body in this inner chamber, The axially opposing two ends of this diamond cover body are the bigger diameter end and a miner diameter end being interconnected, and this bigger diameter end connects a cylindrical cap And towards this inlet end, this miner diameter end is provided with the logical of multiple insertion medial and lateral towards this outlet side, the wall of this diamond cover body Hole, is provided with a fuel atomizer and an igniter in this cylindrical cap, the inner chamber outside the miner diameter end of this diamond cover body is provided with Its axial air-flow guide element corresponding, has a space between this air-flow guide element and this miner diameter end；And

One filter element, its one end be connected to this fuel element and axially to should air-flow guide element, this filter element has At least one filter stamen.

2. according to the vehicle discharge black smoke described in claim 1 and exhaust gas purification and treatment device it is characterised in that：This through hole located at This diamond cover body is towards the inclined wall of this air-flow guide element.

3. according to the vehicle discharge black smoke described in claim 2 and exhaust gas purification and treatment device it is characterised in that：These through holes are The circular port and circumference along this diamond cover body is angularly distributed.

4. according to the vehicle discharge black smoke described in claim 1 and exhaust gas purification and treatment device it is characterised in that：This air-flow guides Element has multiple blades along the distribution of its circumferential arrangement, and these blade lean one angles.

5. according to the vehicle discharge black smoke described in claim 1 and exhaust gas purification and treatment device it is characterised in that：This inlet end Side wall is connected with a urgent by-passing valve.